Thread: Built 4t65e - The results are in.

let me guess your drain threads pulled clean out....

ive already fixed two with 1/2-20 heilicoils though I shoulda probably gone with the more expensive m12 to use the GM engine oil pan drain plug with the captured Oring gasket....would work great with the nice flat boss of the zzp pan.

both of the ones ive seen had some crappy machining of the pan rails....

Originally Posted by Turbocharged400sbc

let me guess your drain threads pulled clean out....

Well, they're not completely gone. But useless, nonetheless.

Originally Posted by Turbocharged400sbc

ive already fixed two with 1/2-20 heilicoils though I shoulda probably gone with the more expensive m12 to use the GM engine oil pan drain plug with the captured Oring gasket....would work great with the nice flat boss of the zzp pan.

I have no idea what the original thread was. I bought it used knowing the threads were hosed. Previously, it had an M14x1.5 "oversize" plug. I'm hoping there's enough material left in the hole for a standard M14x1.5 HeliCoil. My local hardware actually has generic drain plugs in stock, and a pretty good assortment of sealing washers. The plug I got was the perfect size for one of the Neo magnets I have floating around the garage.

Originally Posted by Turbocharged400sbc

both of the ones ive seen had some crappy machining of the pan rails....

There was some pretty bad machining chatter. Bad enough that I hit it with some emery cloth. Should be good now.

Maybe should have skipped the helicoil altogether.

Originally Posted by idrivejunk

Maybe should have skipped the helicoil altogether.

We'll get it sealed up one way or another. I'm not worried.